/**!
 * Copyright (c) [2021] [Tenny]
   [pino-smart] is licensed under Mulan PSL v2.
   You can use this software according to the terms and conditions of the Mulan PSL v2. 
   You may obtain a copy of Mulan PSL v2 at:
            http://license.coscl.org.cn/MulanPSL2 
   THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.  
   See the Mulan PSL v2 for more details.
 */
import { Transform } from 'stream';
import PinoSmart = require('./index');

class SmartTransform extends Transform {

  pretty;

  constructor(options: any) {
    super(options);
    this.setDefaultEncoding('utf8');
    this.pretty = PinoSmart();
  }

  _transform (data: string | Buffer, encoding: string, callback: any) {
    this.push(this.pretty(encoding === 'buffer' ? data.toString('utf8') : data));
    callback();
  }
}

export = SmartTransform;